I was lucky enough to be an early tester, here's a brief video walking through the process of creating worlds, showing examples--walking on the moon, with Nasa photo as part of the prompt, being in 221B Baker street with Holmes and Watson, wandering through a night market in Taipei as a giant boba milk tea (note how the stalls are different, and sell different foods), and also exploring the setting of my award-nominated tabletop RPG.

https://www.youtube.com/watch?v=FyTHcmWPuJE

It's an experimental research prototype, but it also feels like a hint of the future. Feel free to ask any questions.